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Install the Official custom OmniROM based on KitKat 4.4.2 Nighlty on Samsung Galaxy S3 LTE device

In this post, we have presented a step by step guide about how to install the official OmniROM Android 4.4.2 builds to Samsung Galaxy S3 LTE I9305 device. More information about OmniROM KitKat 4.4.2 NighltyROM can be found here.

Pre-requisites:

This process can be used with the International Galaxy S3 LTE model number I9305 device. Do not apply the process on any other phone.

The Galaxy S 3 LTE device has to be rooted and has to run the latest CWM or TWRP Recovery Image.

Create a NANDROID Backup for the actual running ROM; this backup will represent a restore point for your device in case the device doesn’t boot in the normal mode.

A Factory Reset action is required for Galaxy S3 device; we will teach you how to do this during the process.

Note that a Factory Reset action will wipe all data from the device’s system partition; it will leave the Internal and External sdcards unaffected.

Now, take the backup of data stored into device such as installed applications, SMS, MMS, and all other important data for you, you can use Helium application for Android by using this guide.

Now, make a full sync of all your contacts information by using your Gmail account.

Ensure that the smartphone’s battery charge level is more than 60. Use this post only for educational and instructional purpose. Our team will not be held responsible for any damage caused.

Make sure that you’ll read all instructions from here and do not skip any steps from this guide.

For supplementary questions, please use the comment section from below.

After the new custom ROM is installed, you should repeat the step 8 for installing the Gapps zip application.

Now, after the both files are successfully installed you should return to the custom Recovery on the main menu and from there boot the S3 device in normal mode.

Note that the first boot of the device will takes several minutes to complete, don’t worry it is normal.

Now, insert your Google Account information and get control over the device.

Troubleshooting:

If the first process will take more time than usual or fails and doesn’t load the new home logo, or the device enters into a boot loop, repeat steps as given above. .

Note: Don’t skip any step from here and be sure that you apply the Factory Reset step, and you might try to do the Format /System option.

Note: If you don’t like the new custom ROM and the way it’s working you can restore your previous ROM by using the previously created Nandroid backup file. Use our comment section from below for other supplementary questions.